Self-cleaning device for carrying type track geometric dynamic detection equipment

By introducing a self-cleaning device that drives a sliding cleaning block into a track geometry dynamic detection device, the problem of sensor contamination in heavy-load railway environments is solved, the structure of the cleaning device is simplified, and the detection accuracy and reliability are improved.

CN223465184UActive Publication Date: 2025-10-24SHENHUA RAIL & FREIGHT WAGONS TRANSPORT
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Patent Information

Application Number
CN202422758358.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-10-24
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

The sensors of existing track geometry dynamic detection equipment are easily contaminated in heavy-load railway environments. Existing cleaning methods are complex, space-consuming, and inconvenient to maintain, and the nozzles are prone to clogging, affecting the detection accuracy.

Method used

A self-cleaning device for a mounted track geometry dynamic detection equipment is designed. A driver is used to drive a sliding cleaning block to move along the slide rail to scrape away dust and dirt from the protective glass surface, simplifying the structure and improving cleaning efficiency.

Benefits of technology

The sensor features a self-cleaning function, which simplifies maintenance, reduces system complexity, improves detection accuracy and reliability, and avoids nozzle clogging.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a self-cleaning device for carrying type track geometric dynamic detection equipment. The self-cleaning device comprises a sensor protection shell, a driver and a sliding cleaning block. A sensor light-transmitting hole is formed in the surface of the sensor protective shell, and protective glass is arranged in the sensor light-transmitting hole; a sliding rail is arranged on the surface of the sensor protection shell, the sliding rail is arranged beside the sensor light hole, and the sliding cleaning block is arranged on the sliding rail in a sliding mode; the driver is arranged on the surface of the sensor protection shell, the sliding cleaning block is arranged at the output end of the driver, and the driver drives the sliding cleaning block to move along the sliding rail so that the sliding cleaning block can abut against the surface of the protection glass. The driver is used for driving the sliding cleaning block to slide in the first direction, the sliding cleaning block abuts against the surface of the protective glass, the sliding cleaning block scrapes off dust adhering to the surface of the protective glass, the self-cleaning device with the simple structure is used for achieving the self-cleaning purpose, and cleaning and maintenance operation is simpler.
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Description

TECHNICAL FIELD

[0001] The utility model relates to railway infrastructure technical field, especially a kind of self-cleaning device of mounting type track geometry dynamic detection equipment. BACKGROUND

[0002] In recent years, the development of China's railway transportation industry is rapid, the total operation mileage of China's railway has reached 14.63 million kilometers, and railway freight is the main force. With the continuous expansion of the railway network scale, the mileage and freight volume of operation are also increasing, which puts forward higher requirements for line detection.

[0003] Heavy haul railway will experience a large amount of dust, sludge, snow and other harsh environments during use. The sensor will be contaminated by the harsh environment during use, which will affect the use of the sensor. Because the running environment of heavy haul railway freight car is relatively harsh, and considering that the main pollutants in the running environment of the freight car are coal ash and other light particles, it is easy to cause the mirror surface of the monitoring equipment to be contaminated, thereby affecting the normal work of the monitoring equipment. Therefore, it is necessary to design a dustproof device or self-cleaning device for the sensor light path mirror of the monitoring equipment to ensure the accuracy of measuring track geometric displacement.

[0004] The cleaning method in the prior art includes blowing air and spraying water towards the mirror surface, but the blowing air and spraying water method has the following disadvantages: the need to add a water tank, a water pump, an air pump, a control circuit and other devices increases the complexity of the system and reduces the reliability of the system; on the other hand: during long-term transportation, the freight car needs to be refilled with clean water from time to time or use a large-capacity water tank, which occupies a part of the volume of the freight car for storing clean water and increases the operation and maintenance process; on the other hand: the spray head is easy to be blocked, causing the spray head to be unable to be used normally.

[0005] The water tank added in the existing cleaning device occupies the space of the freight car, and needs to be refilled from time to time, so that the structure and maintenance of the cleaning device are relatively complex. UTILITY MODEL CONTENTS

[0006] Therefore, it is necessary to provide a self-cleaning device for mounting type track geometry dynamic detection equipment in view of the above technical problems.

[0007] A self-cleaning device for mounting type track geometry dynamic detection equipment, comprising: a sensor protection shell, a driver and a sliding cleaning block.

[0008] The surface of the sensor protection shell is provided with a sensor light transmission hole, and the sensor light transmission hole is provided with a protective glass; the surface of the sensor protection shell is provided with a sliding rail, the sliding rail is arranged beside the sensor light transmission hole, and the sliding cleaning block is slidingly arranged on the sliding rail.

[0009] The driver is arranged on the surface of the sensor protection shell, the sliding cleaning block is arranged on the output end of the driver, and the driver drives the sliding cleaning block to move along the sliding rail so that the sliding cleaning block abuts against the surface of the protection glass.

[0010] In one of the embodiments, the driver is a rotary driving motor, the output end of the rotary driving motor is provided with a rudder disc, the first end of the rudder disc is rotatably provided with a connecting rod through a first rotary shaft, and the first end of the connecting rod is rotatably connected with the sliding cleaning block through a second rotary shaft.

[0011] In one of the embodiments, the sensor light transmission holes include a shell temperature sensor light transmission hole, a shell laser light transmission hole and a shell camera light transmission hole, and the shell temperature sensor light transmission hole, the shell laser light transmission hole and the shell camera light transmission hole are distributed along the extension direction of the sliding rail in sequence.

[0012] In one of the embodiments, the surface of the sliding cleaning block is provided with a sliding block hole, and the size of the shell temperature sensor light transmission hole and the size of the shell laser light transmission hole are both smaller than the size of the sliding block hole.

[0013] In one of the embodiments, the protection glass includes a first glass arranged in the shell temperature sensor light transmission hole, and the first glass is germanium glass.

[0014] In one of the embodiments, the protection glass includes a second glass arranged in the shell laser light transmission hole and the shell camera light transmission hole, and the second glass is quartz glass.

[0015] In one of the embodiments, an upper cover is further included, the upper cover is provided with a temperature sensor light transmission hole, a laser light transmission hole and a camera light transmission hole, the temperature sensor light transmission hole is opposite to the shell temperature sensor light transmission hole, the laser light transmission hole is opposite to the shell laser light transmission hole, and the camera light transmission hole is opposite to the shell camera light transmission hole.

[0016] In one of the embodiments, the first end of the upper cover is provided with a first opening, and the driver drives the sliding cleaning block to move to the first opening.

[0017] In one of the embodiments, the upper cover and the sensor protection shell are detachably connected.

[0018] In one of the embodiments, the material of the side of the protection glass abutting against the sliding cleaning block is rubber.

[0019] The self-cleaning device of the mounted track geometry dynamic detection equipment scrapes off the dust adhered to the surface of the protective glass by using the driver to drive the sliding cleaning block to slide along the first direction, and the self-cleaning purpose is achieved by using the self-cleaning device with simple structure, and the cleaning and maintenance operation is simpler. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 An assembly diagram of the sensor protective shell, the driver and the sliding cleaning block in an embodiment;

[0021] Figure 2 An assembly diagram of the sensor protective shell structure in an embodiment;

[0022] Figure 3 An assembly diagram of the sliding cleaning block in a blocking state in an embodiment;

[0023] Figure 4 An assembly diagram of the upper cover and the sensor protective shell in an embodiment;

[0024] Figure 5 An assembly diagram of the upper cover structure in an embodiment. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0026] Embodiment One

[0027] As shown in Figure 1 and Figure 2 , a mounted track geometry dynamic detection equipment self-cleaning device is provided, which comprises a sensor protective shell 2, a driver and a sliding cleaning block.

[0028] The surface of the sensor protective shell 2 is provided with a sensor light transmission hole, and the sensor light transmission hole is provided with a protective glass; the surface of the sensor protective shell 2 is provided with a sliding rail 9, the sliding rail 9 is arranged beside the sensor light transmission hole, and the sliding cleaning block is slidingly arranged on the sliding rail 9.

[0029] The driver is arranged on the surface of the sensor protective shell 2, the sliding cleaning block is arranged on the output end of the driver, and the driver drives the sliding cleaning block to move along the sliding rail 9 so that the sliding cleaning block abuts against the surface of the protective glass.

[0030] In this embodiment, the sensor is positioned within the sensor protective housing 2, with the sensor's acquisition end facing the sensor's light-transmitting aperture to detect the surface of the track. A slide rail 9 is positioned adjacent to the sensor's light-transmitting aperture, and a driver is controlled to automatically move the sliding cleaning block along the rail 9. During movement, the sliding cleaning block abuts and scrapes against the surface of the protective glass, removing dust and other contaminants adhering to the surface.

[0031] like Figure 1 As shown, in one embodiment, the driver is a rotary drive motor 5, and the output end of the rotary drive motor 5 is provided with a steering wheel 6. The first end of the steering wheel 6 is rotatably provided with a connecting rod through a first rotating shaft 601, and the first end of the connecting rod is rotatably connected to the sliding cleaning block through a second rotating shaft 602.

[0032] In this embodiment, the driver can be a rotary drive motor 5. The rotary drive motor 5 is disposed on a side surface of the sensor protective housing 2 where the sensor light transmission hole is provided, and the output shaft of the rotary drive motor 5 is perpendicular to the surface of the sensor protective housing 2. The steering wheel 6 is connected to the output shaft of the rotary drive motor 5. The rotary drive motor 5 is controlled to operate, and the rotary drive motor 5 drives the steering wheel 6 to rotate around the output shaft of the rotary drive motor 5. The first end of the steering wheel 6 is rotationally connected to the second end of the connecting rod via a first rotating shaft 601, and the second end of the connecting rod is rotationally connected to the sliding cleaning block via a second rotating shaft 602. During the rotation of the steering wheel 6, the connecting rod drives the sliding cleaning block to move along the slide rail 9, so that the sliding cleaning block abuts the surface of the protective glass, scrapes off dirt adhering to the protective glass, and achieves the purpose of cleaning the sensor light transmission hole.

[0033] In one embodiment, the driver may also be a linear motor, the stator of the linear motor is arranged in a direction parallel to the slide rail, and the sliding cleaning block is arranged on the mover of the linear motor.

[0034] In this embodiment, the driver is a linear motor, and the direction of motion of the linear motor's mover is set parallel to the slide rail. By controlling the linear motor's motion, the mover drives the sliding cleaning block along the linear motor's stator, causing the sliding cleaning block to abut the surface of the protective glass, scraping off any dirt stuck to the protective glass and cleaning the sensor's light transmission hole.

[0035] In one embodiment, the driver can also be a power motor, the output shaft of the power motor is parallel to the direction of the slide rail, a screw is provided on the output shaft of the power motor, a threaded hole is opened through the interior of the sliding cleaning block, the screw is passed through the threaded hole, and the screw is threadedly connected to the hole wall of the threaded hole.

[0036] In this embodiment, the sliding cleaning block is arranged on the slide rail, and the screw rod is arranged in the threaded hole in the sliding cleaning block. The power motor is controlled to act, and the power motor drives the sliding cleaning block to move along the slide rail through the screw rod, so that the sliding cleaning block abuts against the surface of the protective glass, and the dirt adhered to the protective glass is scraped off, thereby achieving the cleaning purpose of the sensor light transmission hole.

[0037] As shown in Figure 1 and Figure 2 , in one embodiment, the sensor light transmission hole includes a housing temperature sensor light transmission hole 201, a housing laser light transmission hole 202, and a housing camera light transmission hole 204, which are arranged along the extension direction of the slide rail 9 in sequence.

[0038] In this embodiment, the housing temperature sensor light transmission hole 201, the housing laser light transmission hole 202, and the housing camera light transmission hole 204 are arranged on the surface of the sensor protective housing 2, so that the temperature sensor, the laser, and the camera can be respectively installed inside the sensor protective housing 2. Among them, the collection end of the temperature sensor is opposite to the housing temperature sensor light transmission hole 201, which is used for detecting the temperature of the track. The light of the laser passes through the housing laser light transmission hole 202 and irradiates onto the track, which is used for detecting the flatness, height deviation, and other geometric parameters of the track. The lens of the camera captures the surface image of the track through the housing camera light transmission hole 204, and captures the image or video data of the track. These data can be used for further analysis to determine whether the geometric state of the track has defects, such as cracks, wear, or other damages.

[0039] The housing temperature sensor light transmission hole 201, the housing laser light transmission hole 202, and the housing camera light transmission hole 204 are arranged along the extension direction of the slide rail 9 in sequence. When the sliding cleaning block is driven to slide along the slide rail 9 by the control driver, the sliding cleaning block can pass through the surface of the protective glass in the housing temperature sensor light transmission hole 201, the housing laser light transmission hole 202, and the housing camera light transmission hole 204 in sequence, so as to scrape off the dirt adhered to the protective glass, thereby facilitating the normal work of the temperature sensor, the laser, and the camera, and reducing the influence of the dirt on the sensor.

[0040] As shown in Figure 1 , Figure 2 and Figure 3As shown, in one embodiment, the connecting rods include a first connecting rod 4 and a second connecting rod 7, which are respectively arranged on both sides of the rotating drive motor 5, the sliding cleaning blocks include a first cleaning block 3 and a second cleaning block 8, which are slidingly arranged on the slide rail 9, the middle part of the rudder disc 6 is connected to the output end of the rotating drive motor 5, the first end of the rudder disc 6 is rotationally connected to the first end of the first connecting rod 4 through a first rotating shaft 601, the second end of the first connecting rod 4 is rotationally connected to the first cleaning block 3 through a second rotating shaft 602, the second end of the rudder disc 6 is rotationally connected to the first end of the second connecting rod 7 through a third rotating shaft 603, and the second end of the second connecting rod 7 is rotationally connected to the second cleaning block 8 through a fourth rotating shaft 604.

[0041] Specifically, in the present embodiment, the first connecting rod 4 and the second connecting rod 7 are respectively connected to the two ends of the rudder disc 6, so that when the rotating drive motor 5 works, the first connecting rod 4 and the second connecting rod 7 will be driven to move by the rudder disc 6, and in turn drive the first cleaning block 3 and the second cleaning block 8 to move towards each other or away from each other along the slide rail 9.

[0042] The surface of the sensor protective shell 2 is provided with a driver mounting hole 203 between the shell laser light transmission hole 202 and the shell camera light transmission hole 204, and the rotating drive motor 5 is mounted in the driver mounting hole 203. By controlling the action of the rotating drive motor 5, the rotating drive motor 5 drives the rudder disc 6 to rotate around the output shaft of the rotating drive motor 5, so that the first end and the second end of the rudder disc 6 simultaneously drive the first cleaning block 3 and the second cleaning block 8 to move along the slide rail 9 through the first connecting rod 4 and the second connecting rod 7, the first cleaning block 3 abuts against the surface of the protective glass in the shell temperature sensor light transmission hole 201 and the shell laser light transmission hole 202, and the second cleaning block 8 abuts against the surface of the protective glass in the shell camera light transmission hole 204, thereby cleaning the protective glass in the shell temperature sensor light transmission hole 201, the shell laser light transmission hole 202 and the shell camera light transmission hole 204, respectively.

[0043] When the sensor detects the track, the rotating drive motor 5 is controlled to drive the first cleaning block 3 and the second cleaning block 8 to move away from the shell temperature sensor light transmission hole 201, the shell laser light transmission hole 202 and the shell camera light transmission hole 204, so that the temperature sensor, the laser and the camera can be aligned to the surface of the track.

[0044] When the vehicle is not running or the sensor is not collecting, the rotating drive motor 5 is controlled to drive the first cleaning block 3 and the second cleaning block 8 to block the surface of the shell temperature sensor light transmission hole 201, the shell laser light transmission hole 202 and the shell camera light transmission hole 204, so as to avoid the glass on the sensor protective shell 2 from being broken by foreign matter impact.

[0045] As shown in Figure 1 one embodiment, the surface of the sliding cleaning block is provided with a sliding block hole, the size of the housing temperature sensor light transmission hole 201 and the size of the housing laser light transmission hole 202 are both smaller than the size of the sliding block hole.

[0046] In this embodiment, the surface of the first cleaning block 3 is provided with a sliding block hole, and the size of the sliding block hole is larger than the size of the housing temperature sensor light transmission hole 201 and the size of the housing laser. When the temperature sensor or the laser is needed to detect the track, the control driver drives the first cleaning block 3 to move, so that the sliding block hole is opposite to the housing temperature sensor light transmission hole 201 or the housing laser light transmission hole 202, so that the temperature sensor detects the track through the housing sensor light transmission hole, or the laser detects the track through the housing laser light transmission hole 202. When the temperature sensor or the laser is stopped, the control driver drives the first cleaning block 3 to move, so that the sliding block hole is dislocated from the housing temperature sensor light transmission hole 201 or the housing laser light transmission hole 202, and the first cleaning block 3 is used to shield the surface of the protective glass, so as to reduce the possibility of dirt adhering to the surface of the protective glass. At the same time, the protective glass can be protected.

[0047] As shown in Figure 2 one embodiment, the protective glass includes a first glass arranged in the housing temperature sensor light transmission hole 201, and the first glass is germanium glass.

[0048] In this embodiment, the germanium glass has high transmissivity in the infrared wave band, which can allow infrared radiation to pass through. The germanium glass is used as the protective glass of the housing temperature sensor light transmission hole 201, so that the infrared thermal imaging temperature sensor can accurately detect the temperature of the track.

[0049] As shown in Figure 2 one embodiment, the protective glass includes a second glass arranged in the housing laser light transmission hole 202 and the housing camera light transmission hole 204, and the second glass is quartz glass.

[0050] In this embodiment, the protective glass arranged in the housing laser light transmission hole 202 and the housing camera light transmission hole 204 is quartz glass. The quartz glass has very high optical transparency, which allows laser and visible light to pass through without absorption or scattering, so as to ensure the measurement accuracy of the laser and the camera. In addition, the quartz glass has good transmission to ultraviolet rays. If the working wave band of the laser or the camera includes ultraviolet rays, the quartz glass can ensure that the light in these wave bands can pass through smoothly.

[0051] As shown in Figure 1 , Figure 4 andFigure 5 As shown, in one embodiment, the upper cover 1 is further provided with a temperature sensor light transmission hole 101, a laser light transmission hole 102 and a camera light transmission hole 103, the temperature sensor light transmission hole 101 is opposite to the shell temperature sensor light transmission hole 201, the laser light transmission hole 102 is opposite to the shell laser light transmission hole 202, and the camera light transmission hole 103 is opposite to the shell camera light transmission hole 204.

[0052] In this embodiment, the upper cover 1 is installed on the surface of the sensor protective shell 2, the temperature sensor light transmission hole 101, the laser light transmission hole 102 and the camera light transmission hole 103 are respectively formed on the upper cover 1, and the temperature sensor light transmission hole 101 is opposite to the shell temperature sensor light transmission hole 201, the laser light transmission hole 102 is opposite to the shell laser light transmission hole 202, and the camera light transmission hole 103 is opposite to the shell camera light transmission hole 204. The upper cover 1 protects the drive, the rudder plate 6, the first connecting rod 4, the second connecting rod 7, the first sliding block and the second sliding block installed on the surface of the sensor protective shell 2.

[0053] In one embodiment, the first end of the upper cover 1 is provided with a first opening, and the drive drives the sliding cleaning block to move to the first opening.

[0054] In this embodiment, the first end of the upper cover 1 is provided with a first opening. The drive is controlled to act, the drive drives the sliding cleaning block to move along the slide rail 9, and the sliding cleaning block scrapes off the dirt adhered to the surface of the protective glass. When the sliding cleaning block moves to the first opening, the sliding cleaning block pushes the dirt away from the inside of the upper cover 1 through the first opening, avoiding the accumulation of dirt on the surface of the sensor protective shell 2.

[0055] In one embodiment, the second end of the upper cover 1 is provided with a second opening, and the drive drives the sliding cleaning block to move to the second opening.

[0056] In this embodiment, the first opening and the second opening are respectively located at the two ends of the upper cover 1, and the line between the first opening and the second opening is parallel to the slide rail 9. The rotating drive motor 5 is controlled to act, the rotating drive motor 5 drives the first cleaning block 3 and the second cleaning block 8 to move along the slide rail 9 through the first connecting rod 4 and the second connecting rod 7 respectively, and the first connecting rod 4 drives the first cleaning block 3 to move to the first opening, and the second connecting rod 7 drives the second cleaning block 8 to move to the second opening, and the dirt adhered to the surface of the first glass and the second glass is respectively discharged to the outside of the upper cover 1 through the first opening and the second opening, avoiding the accumulation of dirt on the surface of the sensor protective shell 2.

[0057] As Figure 2 and Figure 5As shown, in one embodiment, the upper cover 1 is detachably connected with the sensor protection shell 2.

[0058] In the embodiment, the surface of the sensor protection shell 2 is provided with a shell mounting screw hole 205, and the edge of the upper cover 1 is provided with an upper cover mounting screw hole 104. The upper cover 1 is connected with the sensor protection shell 2 through bolts, the bolts are simultaneously arranged in the upper cover mounting screw hole 104 and the shell mounting screw hole 205, and the bolts are threadedly connected with the hole walls of the upper cover mounting screw hole 104 and the shell mounting screw hole 205. Thus, the upper cover 1 and the sensor protection shell 2 can be quickly detached, and the components inside the upper cover 1 can be conveniently maintained and replaced.

[0059] In one embodiment, the material of the side of the sliding cleaning block abutting against the protective glass is rubber.

[0060] In the embodiment, the material of the side of the first cleaning block 3 and the second cleaning block 8 abutting against the first glass and the second glass is rubber. The elasticity of the rubber can be used to adapt to different shapes of surfaces without damaging the surface of the glass, so that more comprehensive cleaning can be achieved. In addition, the rubber material has a good friction coefficient. When the rubber sliding block slides on the glass surface of the light transmission hole, it can effectively wipe off dust and other contaminants, achieving the function of self-cleaning.

[0061] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0062] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A self-cleaning device for a mounted track geometry dynamic detection apparatus, characterized in that, Include: Sensor protection shell, driver and sliding cleaning block; The surface of the sensor protection shell is provided with a sensor light transmission hole, and a protective glass is arranged in the sensor light transmission hole; the surface of the sensor protection shell is provided with a sliding rail, the sliding rail is arranged beside the sensor light transmission hole, and the sliding cleaning block is slidingly arranged on the sliding rail; The driver is arranged on the surface of the sensor protection shell, the sliding cleaning block is arranged on the output end of the driver, and the driver drives the sliding cleaning block to move along the sliding rail so that the sliding cleaning block abuts against the surface of the protective glass.

2. The self-cleaning device for a rail-mounted dynamic track geometry inspection apparatus according to claim 1, characterized in that The driver is a rotating drive motor, the output end of the rotating drive motor is provided with a rudder disc, the first end of the rudder disc is rotatably provided with a connecting rod through a first rotating shaft, and the first end of the connecting rod is rotatably connected with the sliding cleaning block through a second rotating shaft.

3. The self-cleaning device for a mounted track geometry dynamic detection apparatus according to claim 1, characterized in that, The sensor light transmission hole includes a shell temperature sensor light transmission hole, a shell laser light transmission hole and a shell camera light transmission hole, and the shell temperature sensor light transmission hole, the shell laser light transmission hole and the shell camera light transmission hole are distributed along the extension direction of the sliding rail in sequence.

4. The self-cleaning device for a mounted track geometry dynamic detection apparatus according to claim 3, characterized in that, The surface of the sliding cleaning block is provided with a sliding block hole, and the size of the shell temperature sensor light transmission hole and the size of the shell laser light transmission hole are smaller than the size of the sliding block hole.

5. The self-cleaning device for a rail-mounted dynamic track geometry detection apparatus according to claim 3, characterized in that The protective glass includes a first glass arranged in the shell temperature sensor light transmission hole, and the first glass is germanium glass.

6. The self-cleaning device for a rail-mounted dynamic track geometry detection apparatus according to claim 3, characterized in that The protective glass includes a second glass arranged in the shell laser light transmission hole and the shell camera light transmission hole, and the second glass is quartz glass.

7. The self-cleaning device for a rail-mounted dynamic track geometry detection apparatus according to claim 3, characterized in that Further comprising an upper cover, the upper cover is provided with a temperature sensor light transmission hole, a laser light transmission hole and a camera light transmission hole, the temperature sensor light transmission hole is opposite to the shell temperature sensor light transmission hole, the laser light transmission hole is opposite to the shell laser light transmission hole, and the camera light transmission hole is opposite to the shell camera light transmission hole.

8. The self-cleaning device for a rail-bound vehicle according to claim 7, characterized in that The first end of the upper cover is provided with a first opening, and the driver drives the sliding cleaning block to move to the first opening.

9. The self-cleaning device for a rail-bound vehicle according to claim 7, characterized in that The upper cover and the sensor protection shell are detachably connected.

10. The self-cleaning device for a track-geometry dynamic-detection device according to any one of claims 1 to 9, characterized in that, The material of the side of the protective glass abutting against the sliding cleaning block is rubber.